Part of completism is the desire to have a complete list of all fantasy that has ever been produced in any form, despite the extreme difficulty of defining fantasy exactly. Much valuable spadework has been done, in listings of fantasy stories in mundane magazines, fantasy in the films, scientificomics, indexes to the proz, etc, but none of these has been complete even in its own restricted field, and the master project remains for the future. Worth noticing here are the Swisher-Evans-Pavlat fanzine checklist; Evans' work with the Munsey files; the checklists and indexes of Don Day and Everett Bleiler; and some work on the off-base fringes of the pulp field by Bill Austin. The task of compiling fantasy books alone is such a big job that proposals have been made to make it a cooperative enterprise of all interested bibliophiles in fandom. Tony Boucher in July 1944 called for a centralization of fantasy bibliographic work, to be run by a chief bibliographer "who would live surrounded by card-indexes". Other fans would specialize and submit their stuff to the central office, and the product would eventually be published as The Great Bibliography.

Part of completism is the desire to have a complete list of all fantasy that has ever been produced in any form, despite the extreme difficulty of defining fantasy exactly. Much valuable spadework has been done, in listing of fantasy stories in mundane magazines, fantafilms, scientificomics, books, indexes to the pros, &c, but none of these has been complete even in its own restricted field, and the master project remains for the future.

The task of compiling fantasy books alone is such a big job that proposals have been made to make it a cooperative enterprise of all interested bibliophiles in fandom.